Cooling apparatus for automobiles.



H. T. THOMAS.

coouue APPARATUS FOR AUTOMOBILES.

APPLICATION FILED MAR. 17. IQIG.

1,241,681 Patented Oct. 2,1917.

2 SHEETS-SHEET l.

i v a'zace/J 5W 7-... F 4% H. T. THOMAS.

coouwe APPARATUS FOR AUTOMOBILES.

APPLICATION FILED MAR.17| l9lfi.

Patented Oct. 2,1917.

2 SHEETS-SHEET 2.

T OFC.

COOLING APPARATUS FOR AUTOMOBILES.

Application filed March 17, 1916.

To all whom it may concern Be it known that I, HORACE T. THOMAS, a citizen of the United States, residing at Lansing, county of Ingham, State of Michigan, have invented a certain new and useful Improvement in Cooling Apparatus for Au- ,cooling system for automobile engines and to provide for the rapid heating of the en gine when it is starting and to automatically guard against too much cooling of the Water in the radiator when the engine is at rest.

I accomplish this object in the device illustrated in the accompanying drawings in which,

Figure 1 is a side view partly in section of ana paratus embodying my invention and so nine of an automobile engine as is necessar to illustrateits connection therewith.

ig. 2 is a front elevation of the radiator.

a is an automobile engine having the water jacket a". 3 is the radiator or' cooler. b is a water conduit leading from the radiator 3 to the lower portion of the water jacket a There is a centrifugal pump 4 adapted to be operated by the engine and to force the water through said conduit.

' cooling water is at a low temperature and.

Wis a conduit leading from the water jacket ato the upper portion of the radiatar 3. b is an enlargement in the conduit b 1) is a thermostat adapted to nearly close the passage through the conduit 6 when the to open said passage when the temperature of the waternses.

6 is a diaphragm chamber located in a casingat the u per part,of the rad1ator3 and havin adbiiible diaphragm or inner wall 6*:1' 5 1s atube communicating with the interior off-the chamber 6 and with the enlargement b in the pipe b 7 is a lever pivoted at 8 at one end and at the other end I bent into a hook 7 adapted to engage afbellcrank lever 9. The diaphragm 6 is connected at its center to the lever '7 so a to Specification of Letters Patent.

Patented Oct. 2, 1917.

Serial No. 84,915.

oscillate said lever about its pivot 8 to actuate the bell-crank lever 9.

10 lndicates shutters adapted to open and close an area in front of the cooling tubes of the radiator 3. The shutters 10 are pivoted at 10 and are connected together by pivoted rods 11.

The bell-crank lever 9 engages against a lug extending from one of the connecting rods 11. 10" is a spring acting to force the shutters 10 to their closed position.

The operation of the above described device is as follows:

When the engine is starting up the condult b is nearly closed by the thermostat b and there is a small amount of water in the jacket a and between the jacket and the thermostat. As the engine begins to function it heats the small quantity of water quickly by which time it has gathered some speed.

The heat opens the thermostat I) and the pressure of the water isconveyed through the pipe 5 to the chamber 6 where it presses the diaphragm 6 outward and oscillates the lever 7 thus opening the shutters 10 as indicated in dotted lines in Fig. 1.

When the engine stops, the pressure in the diaphragm G is relieved and the spring 10 draws the shutters back to their closed position thus preventing the cooling of the radiator tubes to the extent and at the rate at which it would otherwise occur.

What I claim is: v

1. A combination including an internal combustion engine having a cooling system consisting in a complete circuit returning upon itself in which cooling liquid is circulated, said cooling system including a radiator, an outflow conduit leading from said engine to said radiator, a thermostat located in said out-flow conduit and adapted to substantially stop the circulation of liquid therein when said liquid is cool and to open said conduit when the water ad-' jacent to said thermostat rises'in temperature, whereby the water in said engine is held at rest until its temperature has risen to the desired temperature and is then permitted to circulate to regulate the temperature of the engine.

2. A combination including an internal combustion engine having a cooling circuit provided with a radiator, an out-flow conduit leading from said engine to said radiator, a thermostat located on the out-flow -side of the engine and adapted to approximately close the out-flow conduit when the water is cool and to leave said conduit open When the Water is heated, a circulating pump and a motor communicating With the circuit beyond the thermostat, adapted to open up the radiator to the admission of air when a predetermined pressure due to the inertia of the Water and a predetermined temperature has been developed.

3. A combination including an internal combustion engine having a cooling circuit provided With a radiator and circulating pump, and a motor communicating with said circuit and adapted to be actuated by the pressure of the liquid therein due to the inertia of the Water, said motor being 20. adapted to open up the radiator to the admission of air.

4. A combination including an internal combustion engine having a cooling circuit provided With a radiator and circulating pump, and a motor communicating with said circuit and adapted to be actuated by the pressure of .the liquid therein due to the inertia of the Water, said motor being variation in the area of been developed.

' reamed adapted to open up the radiator to the admission of air, said motor being connected to said circulating system adjacent to a through said system. v

5. The combination of an internal combustion engine having a cooling circuit provided With a radiator anda motor adapted to be operated by the pressuredue to the inertia of the water in said system for opening up the radiator to the admission of air. I v

6. A combination including an internal the passageway combustion engine having a cooling circuit provided with a radiator and a circulating pump, a thermostat located in the circuit between the engine and radiator on the.

out-flow side of the engine, and a motor communicating with the circuit beyond thethermostat, adapted to open up the radia-.'

tor to the admission of air when *a-predetermined pressure and temperature has In testimony whereof, ll sign, this specification.

nonacn T. 'rnfioiias. 

